PROBLEM TO BE SOLVED: To provide a tissue compression limiting mechanism used for a surgical stapling tool.SOLUTION: A torque limiting mechanism 40, used for the surgical tool to compress tissues, includes: a driven member 78 engageable with a mechanism for approximating the surgical tool and having a driven surface a driving member 82 having a driving surface engageable with the driven surface of the driven member so as to slide on the driven surface of the driven member 78 at a predetermined engagement pressure, and connected to a clamping actuator of the tool and a torque control unit 42 having a member for adjusting a pressure applied to the driven member 78 by the driving member 82.COPYRIGHT: (C)2013,JPO&INPIT【課題】外科手術ステープリング器具において用いられる組織圧縮制限機構を提供する。【解決手段】組織を圧縮する外科手術器具に用いられるトルク制限機構40は、外科手術器具の接近させる機構と係合可能な被駆動部材78であって、被駆動部材78は被駆動表面を有する、被駆動部材78と、駆動部材78であって、被駆動部材78の被駆動表面と係合可能な駆動表面を有し、器具のクランピングアクチュエータに接続され、駆動部材82の駆動表面は、所定の係合圧力で被駆動部材78の被駆動表面に対して滑る、駆動部材82と、駆動部材82によって被駆動部材78に加えられる圧力を調整する部材を有するトルク制御器42とを備えている、トルク制限機構。【選択図】図2
